help diagnosing rough shifts
Looking for a little help with my 1990 F-150. I believe it has the AOD tranny (OD,D,1 on the column). I also have the 5.0L engine. I purchased it just a couple weeks ago with only 77K miles.
This is a little hard to decribe. As I am accelerating, the truck shifts, but it seems to lug right after the shift, resulting in a slight 'rough or jarring' shift. The best 'non-technical' way to describe it is it seems to 'fall off' after each shift. It is much more noticable when I am easy on the throttle. So if I am pushing it hard, it doesn't seem to bee as rough. But it doesn't 'slide' into the next gear.
The transmission fluid was changed about 5K miles ago. I assume the filter was too. Last weekend, I checked the fluid and it was too high, so I pulled about a 1/3 pint out of the tranny. The fluid looked good; clear red color and didn't stink.
Could this be engine related? Perhaps fuel filter?
Appreciate any help!